nascar

I am not a sports person. Never have been, probably never will be. I am not the kind of person who enjoys watching sports games. But I really don't understand Nascar. I don't even see how it is a real sport- I mean, driving a car is not a workout. How is that a sport? And even more, why would you want to dress up in fancy Nascar jackets and stuff? What do they do? I just don't get it...